Combined pot and tank furnace.



No. 828,839. PATWLED.AUG` 14, 1906,

A J. A. CHAMBERS'. GQMBINED POT AND TANK PURNAGB.

APPLIOATION FILED APR.6.1905.

3 SHEETS--SHBET 1.

i TED lsiATEs -JAMEsVa cnAMBEEs, or ALLEGHENY, PENNSYLVANIA, A

PATENT EEioE.,

ssieNoR, BY

COUNTY, PENNSYLVANIA. l'

coMBlNEDfP'o-r AND TANK FUHNACE.

No. eeaase.

To @ZZ whom, t may concern:

Beit known that I, 4JAMES A. CHAMBERS, of Allegheny, in the county of Allegheny and State 'of Pennsylvania, have invented a new and useful Combined Pot and Tank Furnace, of which the'following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which-' Figure l is a horizontal sectional view illustrating a portion of my ace. Fig. 2 is a longitudinal vertical sectional view of a' portion ofthe same. 3 is a cross vertical sectional View on the line III III of Fig. 2. Fig. 4 'is a horizontal sectional view illustrating a modiiied form of furnace, and Fig. 5

is a longitudinal vertical sectional view of the sam My invention relates tothe manufacture of glass; and it is designed to provide means y for melting glass in a tank-furnace, causing the molten glass to overflow into pots within a pot-chamber which communicates directly and openly with the tank-chamber, and the heating and :lining of the glass in these pots.

' .ln the drawings, 2 represents a portion of a Aas glass tank-furnace, which furnaceat the end opposite to that where the batch is fed in is provide with one or more potchambers 3, whic open out of the tank-chamber and at their lower por i n/are separated therefrom byl he bridglall 7. 'In these pot-cham ber are one crm re pots 4. Leading from th y. tank-chamber 2- over or through the.

bridge-wall 7 to a point Within the pot- 4chambers A3 are overflow-troughs 5, which are so arranged as to permit the molten glass to overflow into the pots 4. The opening 6 in the side wall of the tank-chamber between the. tank-chamber and the pot-chamber and above the bridge-wall 7 permits the free circulation of the heat from the tank-chamber to the pot-chamber. y The outer wall of the pot-chamber is/provided with door-openings which are adapted to be closed by the vertically-sliding doors 8. In the drawings I have shown three ot-chambers, one at the endof the tank an one at each side thereof.

`I do not desire, however, tolimit myself 'to 'i this number. On each side .of the tank are regenerative heating-fines 9, which furnish heat to the tank-chamber in the usi l inan- Specification of Letters Patent. Application llled April 6, 1905. Serial No. 254.149.

g grade.

Patented Aug-.1.14, 1906. i

ner. In certain cases should the openingfli above the bridge-wall 9 fail to furnish. suiiicient heat to the pot-chamber or Where a greater heat is required in the pot-chamber than is supplied from the tankefurnace I add a regenerative liuc 9?, (shown in Figs. 4 and 5`of the drawings,) which flue opens directly into the pot-chamber.

The operation is as follows: The molten glass as it melts in the tank is allowed to overflow-from the tank through the overflowtroughs into the pots in the pot-chamber,

where it becomes refined and settled. When the pot is filled and the glass is iined, the pot is removed from the pot-chamber and4 the glass is poured on the casting-table, where plate or rough glass is to be made. For making Window-glass the pot is removed from the pot-chamber and is set in an openin in the top of the heatingkiln,.where the glass is drawn from the pot into cylinders. The empty pot is then returned to the pot-chamber to be refilled and the operation is repeated. By using a number of be continuous. l

The advantages of my invention result from the construction herein described that enables the practical use of pots instead of ladies, as where ladies are employed in the manufacture of window-glass the consequent disturbance of'the glass injures the quality and causes the production of an `inferior By the useof my apparatus this disturban'ce is avoided, a superior quality ofi glass is produced, and the services of the ladler is dispensed with. In the manufacture 'of plateglass all the advantages ofthe use of pots is preserved, together with the advantages of melting the glass in a tank, and there is also a great saving in pots and fuel, as Well as the production of a superior `quality of glass.

The pots in the pot-chamber may be of any desiredsize and shape according to the class of .the article to be manufactured.

Having thus described my invention, what I claim, and desire to secure by Letters Pat- Q v roo rent, is

1f, A tank-furnace having a tank-chambei,

one or more pot iming-chambers'in direct an Y open communication with said tanlncliamber and having closed' outer walls, Aan overpots the operation may ow leading from the tank to the pot nin chamber andadapted to discharge the mo l ten glass into pots within thesame.

2. A tank-furnace having a tank-chamber 5 one or more pot fining-chambersin direc't and open communication with 'said tank-cham-v mngchamber,. and an overflow lea openv communication with said tank-chamber and having closed outer walls, aheating-l flue communicating directly withl lthe got from the tank to the pot in the pot-chamber. In testimony whereof I have hereunto set my hand. y l' JAMES A. CHAMBERS. Witnesses:

Gmo. B. Bumm', CARRIE E. Eocene'. 

